package com.wangjialu.payment.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;

import java.util.concurrent.TimeUnit;

/**
 * <p></p>
 *
 * @author WangJialu
 * @since 2021/6/23 18:23
 */
@Service
public class PaymentService {

    /**
     * 正常访问
     *
     * @param id
     * @return
     */
    public String paymentInfo_OK(Integer id) {
        return "线程池:" + Thread.currentThread().getName() + " paymentInfo_OK,id:" + id + "\t" + "O(∩_∩)O哈哈~";
    }

    /**
     * 超时访问
     *
     * @param id
     * @return
     */
    public String paymentInfo_TimeOut(Integer id) {
        int timeNumber = 5;
        try {
            // 暂停3秒钟
            TimeUnit.SECONDS.sleep(timeNumber);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池:" + Thread.currentThread().getName() + " paymentInfo_TimeOut,id:" + id + "\t" +
                "O(∩_∩)O哈哈~  耗时(秒)" + timeNumber;
    }

    /**
     * <p>异常</p>
     *
     * @param id
     * @return
     */
    public String paymentInfo_Error(Integer id) {
        int age = 10 / 0;
        return "线程池:" + Thread.currentThread().getName() + " paymentInfo_Error,id:" + id + "\t" +
                "O(∩_∩)O哈哈~ ";
    }

    //---服务的熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"), //是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"), //请求次数阈值
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"), //时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60"),//失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(Integer id) {
        if (id < 0) {
            throw new RuntimeException("******id不能为负数");
        }
        String simpleUUID = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "\t" + "成功调用，流水号是：" + simpleUUID;
    }

    public String paymentCircuitBreaker_fallback(Integer id) {
        return "id不能为负数，请稍后再试............" + id;
    }
}
